Surgical & Medical Instruments & Apparatus
Standard Industrial Classification: SIC 3841
Industry Insider Sentiment Analysis
The Surgical & Medical Instruments & Apparatus sector (SIC 3841) acts as a critical barometer for broader economic health. Our real-time monitoring reveals total transactions. Monitoring "cluster buying" is one of the most reliable leading indicators for future sector performance. By analyzing aggregate data across this specific Standard Industrial Classification, investors can filter out individual company volatility and identify high-conviction trends. When multiple directors and officers within the same industry move capital simultaneously, it often signals an upcoming sector-wide revaluation or a fundamental shift in supply chain dynamics that has yet to be recognized by the broader public market.
| Filing Date | Trade Date | Ticker | Company | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-04 20:01 | 2026-08-03 | IRTC | iRhythm Holdings, Inc. | Rodda Julianne | Officer | SELL | $122.12 | 2,112 | $257,919 | 18,201 |
| 2026-08-04 20:02 | 2026-08-03 | IRTC | iRhythm Holdings, Inc. | Smith Mervin | Officer | SELL | $122.12 | 617 | $75,349 | 22,410 |
| 2026-08-04 20:01 | 2026-08-03 | IRTC | iRhythm Holdings, Inc. | Patterson Chad | Officer | SELL | $122.12 | 2,712 | $331,192 | 55,629 |
| 2026-08-04 20:49 | 2026-08-03 | OBIO | Orchestra BioMed Holdings, Inc. | Sherman Darren | Director, Officer | SELL | $4.09 | 15,000 | $61,350 | 1,154,327 |
| 2026-08-04 20:38 | 2026-07-31 | DXCM | DEXCOM INC | FOLETTA MARK G | Director | SELL | $82.66 | 4,000 | $330,640 | 48,852 |
| 2026-08-03 20:04 | 2026-07-30 | PFSA | Profusa, Inc. | HRT FINANCIAL LP | 10% owner | BUY | $1.05 | 9,874 | $10,325 | 93,745 |
| 2026-08-03 23:29 | 2026-07-30 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Umberger Traci S | Director, Officer | SELL | $23.07 | 22,229 | $512,792 | 199,405 |
| 2026-08-03 23:30 | 2026-07-30 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Mahboob Vaseem | Officer | SELL | $22.99 | 18,188 | $418,217 | 93,891 |
| 2026-08-03 23:32 | 2026-07-30 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Ford Alfred J Jr | Officer | SELL | $23.25 | 27,632 | $642,524 | 105,839 |
| 2026-08-03 23:35 | 2026-07-30 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Moran Timothy P. | Officer | SELL | $22.83 | 15,256 | $348,311 | 66,345 |
| 2026-08-03 23:26 | 2026-07-30 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Webster Brian Daniel | Director, Officer | SELL | $23.21 | 29,822 | $692,213 | 527,115 |
| 2026-08-03 21:17 | 2026-07-30 | SI | SHOULDER INNOVATIONS, INC. | Gilde Healthcare Holding B.V. | 10% owner | SELL | $23.10 | 48,279 | $1,115,177 | 2,332,203 |
| 2026-08-03 20:29 | 2026-07-31 | BSX | BOSTON SCIENTIFIC CORP | LUDWIG EDWARD J | Director | BUY | $45.48 | 5,000 | $227,400 | 30,359 |
| 2026-08-03 20:41 | 2026-07-31 | GKOS | GLAUKOS Corp | WEN LEANA | Director | SELL | $167.63 | 525 | $88,006 | 21,092 |
| 2026-07-31 22:55 | 2026-07-29 | XAIR | Beyond Air, Inc. | Goodman Robert Scott | Director, Officer | BUY | $5.76 | 34,722 | $199,999 | 34,822 |
| 2026-07-31 22:21 | 2026-07-29 | XAIR | Beyond Air, Inc. | MOORHEAD DANIEL J | Officer | BUY | $5.76 | 4,340 | $24,998 | 4,340 |
| 2026-07-31 20:45 | 2026-07-30 | ANGO | ANGIODYNAMICS INC | Nighan Warren JR | Officer | SELL | $14.72 | 23,370 | $344,006 | 64,745 |
| 2026-07-30 20:57 | 2026-07-29 | ATRC | AtriCure, Inc. | Noznesky Justin J | Officer | SELL | $38.80 | 6,182 | $239,862 | 100,219 |
| 2026-07-30 20:57 | 2026-07-28 | ATRC | AtriCure, Inc. | WEHRWEIN SVEN | Director | OPT+S | $37.84 | 25,000 | $946,000 | 40,518 |
| 2026-07-30 20:57 | 2026-07-28 | ATRC | AtriCure, Inc. | Doraiswamy Vinayak | Officer | SELL | $38.88 | 6,000 | $233,280 | 86,511 |
| 2026-07-30 19:00 | 2026-07-29 | PFSA | Profusa, Inc. | HRT FINANCIAL LP | 10% owner | BUY | $1.01 | 1,310 | $1,323 | 83,871 |
| 2026-07-28 21:27 | 2026-07-23 | DRIO | DarioHealth Corp. | Matheis Dennis | Director | BUY | $6.93 | 14,430 | $100,000 | 43,026 |
| 2026-07-28 15:16 | 2026-07-27 | BDX | BECTON DICKINSON & CO | Feld Michael | Officer | SELL | $157.13 | 75 | $11,785 | 20,934 |
| 2026-07-24 12:29 | 2026-07-23 | MMM | 3M CO | Reinseth Theresa E | Officer | SELL | $169.42 | 924 | $156,544 | 2,615 |
| 2026-07-24 12:27 | 2026-07-23 | MMM | 3M CO | Banovetz John Patrick | Officer | OPT+S | $170.44 | 7,880 | $1,343,067 | 50,057 |
| 2026-07-23 20:13 | 2026-07-22 | MMM | 3M CO | Rhodes Kevin H | Officer | OPT+S | $171.20 | 7,669 | $1,312,933 | 43,780 |
| 2026-07-23 20:11 | 2026-07-22 | MMM | 3M CO | Goralski Christian T JR | Officer | OPT+S | $170.46 | 4,902 | $835,577 | 6,971 |
| 2026-07-22 19:45 | 2026-07-21 | RDGL | VIVOS INC | Weeks Brad Allan | Officer | BUY | $0.05 | 92,000 | $4,600 | 1,471,654 |
| 2026-07-21 20:58 | 2026-07-20 | DXCM | DEXCOM INC | SAYER KEVIN R | Director, Officer | SELL | $76.32 | 26,756 | $2,041,999 | 328,970 |
| 2026-07-21 20:26 | 2026-07-16 | GKOS | GLAUKOS Corp | Thurman Alex R. | Officer | OPT+S | $160.00 | 10,000 | $1,600,000 | 43,906 |
| 2026-07-20 21:03 | 2026-07-16 | CERS | CERUS CORP | Jayaraman Vivek K | Officer | SELL | $3.16 | 16,666 | $52,665 | 2,232,211 |
| 2026-07-17 21:48 | 2026-07-15 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Webster Brian Daniel | Director, Officer | SELL | $22.44 | 15,000 | $336,609 | 556,937 |
| 2026-07-17 21:54 | 2026-07-15 | HTFL | Heartflow, Inc. | Rogers Campbell | Officer | OPT+S | $25.72 | 9,219 | $237,113 | 88,731 |
| 2026-07-16 21:06 | 2026-07-15 | DXCM | DEXCOM INC | Brown Michael Jon | Officer | SELL | $74.42 | 1,700 | $126,514 | 104,653 |
| 2026-07-15 16:10 | 2026-07-09 | RDGL | VIVOS INC | Weeks Brad Allan | Officer | BUY | $0.08 | 60,000 | $4,800 | 1,379,654 |
| 2026-07-15 15:43 | 2026-07-15 | RDGL | VIVOS INC | Korenko Michael K | Director, Officer | BUY | $0.06 | 200,000 | $11,420 | 11,285,090 |
| 2026-07-15 13:33 | 2026-07-14 | STIM | Neuronetics, Inc. | Chernett Jorey | 10% owner | BUY | $1.78 | 35,000 | $62,300 | 10,588,988 |
| 2026-07-14 22:00 | 2026-03-16 | PDEX | PRO DEX INC | Domingo Angelita Rebamontan | Director | SELL | $47.24 | 998 | $47,146 | 18,779 |
| 2026-07-14 00:25 | 2026-07-10 | HTFL | Heartflow, Inc. | Farquhar John C.M. | Director, Officer | SELL | $27.75 | 22,562 | $626,096 | 435,373 |
| 2026-07-14 00:04 | 2026-07-09 | GKOS | GLAUKOS Corp | Thurman Alex R. | Officer | OPT+S | $155.00 | 10,000 | $1,550,000 | 43,681 |
| 2026-07-13 19:14 | 2026-07-10 | BJDX | Bluejay Diagnostics, Inc. | HRT FINANCIAL LP | 10% owner | SELL | $1.40 | 34,938 | $48,913 | 92,055 |
| 2026-07-13 19:14 | 2026-07-09 | BJDX | Bluejay Diagnostics, Inc. | HRT FINANCIAL LP | 10% owner | BUY | $1.51 | 64,047 | $96,711 | 126,993 |
| 2026-07-10 17:24 | 2026-07-09 | RDGL | VIVOS INC | Weeks Brad Allan | Officer | BUY | $0.08 | 60,000 | $4,800 | 999,235 |
| 2026-07-09 11:40 | 2026-07-07 | RMD | RESMED INC | Farrell Michael J. | Director, Officer | OPT+S | $218.55 | 4,991 | $1,090,771 | 466,223 |
| 2026-07-09 00:53 | 2026-07-01 | GKOS | GLAUKOS Corp | Navratil Tomas | Officer | SELL | $139.06 | 716 | $99,567 | 87,634 |
| 2026-07-09 01:13 | 2026-07-06 | GKOS | GLAUKOS Corp | Thurman Alex R. | Officer | OPT+S | $150.00 | 10,000 | $1,500,000 | 43,681 |
| 2026-07-07 20:09 | 2026-07-06 | DXCM | DEXCOM INC | SAYER KEVIN R | Director, Officer | SELL | $72.00 | 26,756 | $1,926,432 | 355,726 |
| 2026-07-07 11:49 | 2026-07-06 | DRTS | Alpha Tau Medical Ltd. | Levy Raphi | Officer | OPT+S | $14.00 | 2,270 | $31,782 | 90,180 |
| 2026-07-06 23:36 | 2026-07-02 | SGHT | Sight Sciences, Inc. | Rodberg James | Officer | SELL | $5.36 | 6,902 | $36,995 | 224,037 |
| 2026-07-06 23:36 | 2026-07-06 | SGHT | Sight Sciences, Inc. | HAYDEN JEREMY B. | Officer | SELL | $5.51 | 12,733 | $70,133 | 357,037 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Surgical & Medical Instruments & Apparatus sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3841) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Surgical & Medical Instruments & Apparatus
Every transaction in the Surgical & Medical Instruments & Apparatus industry is reported via Form 4 disclosures. By filtering these filings by industry, investors can detect institutional-scale sentiment shifts before they are reflected in broader market indices, following the capital flow of those with intimate industry knowledge.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.